Bottle cap



Oct. 30, 1945.

v. GUARNASCHELLI 2,388,050

BOTTLE CAP Filed Oct. 2l, 1943 far/7V.

Parentesco. 3o, 1945 Vincent Guarnaschelli, New York, N. Y., assigner to Self Seal Bottle Cap Company, Long Island City, N. Y., a copartnership Application October 21, 1943, Serial No. 507,061

2 Claims.

The invention relates to bottle caps particularly caps which may lend themselves to reuse upon removal from a bottle containing beverage or the like.

The object of my invention is to provide a novel, simple sealing cap for 'bottles that may be readily applied to the open neck of a bottle and hermetically seal the breached receptacle for the preservation of the contents of the lbottle that may remain after the bottle has been first opened and a portion of liquid therein removed.

Referring to the accompanying drawing forming a part of this specification:

Fig. 1 is a side view of a bottle neck and of my improved sealing cap mounted thereon.

Fig. 2 is a transverse sectional view of the improved sealing cap.

Fig. 3 is a bottom plan view of my cap.

Fig. 4 is a perspective view of the improved sealing cap and exposing its novel construction.

The improved sealing cap is preferably made of non-corrodible metal such as aluminum and may with advantage be stamped out of ilat resilient stock material or-be suitable material. p

The device consists of an imperforate disk rounded on a periphery, and having a peripheral iiange |0a` that projects below the at inner surface thereof sufficiently to form a shallow recess wherein is embedded a nat circularly edged planchet of cork or other slightly yielding material. The flange |0b is cut out at the front to provide an entrance mouth S for the cap. The top central portion is preferably indented or cupped inwardly at I0' to provide yield of the cast in form from flange portion. Integrally with the flange |0aV the ilanged extension |0b is formed and it has an inwardly projecting lip |05 upon the lower edge thereof; the lip is provided with three suitably located spaced apart inwardly projecting extensions"|0|, |02, |03 as appears in'Figs. 3y and 4.

'I'he lip extensions |0|, |02, |03 are arcuate and of a greater radius of curvature than the iiange |0b. Upon the upper surfaces of the lip |05 and the extensions |0|, |02, |03, upwardly extending rounded cam-like projections |06, |01, and |08, are formed. 'Ihe peaks of these projections occur substantially above the midpoints lof their respective lip extensions and the troughs between the projections occur -above the junctions of adjacent lip extensions, yas is apparent in Fig. 4.

'nie improvement isdeslgned to be mounted upon a class or bottlesrused "for packingaerated or lother beverages or the like. Usuallythese bottles have similar necks l2 at their pouring |06, |01 will thus frictiona-lly engage the underside of the bead. The arcuately rising formation of the projections |06, |0'|4 facilitates the grip of the cap on the bead, and cooperative with the rear projection |08 and with the resiliency of the planchet and of the cap an effect-ive seal is provided; The similarly arcuately rising projection |08 at the rear prevents tilt of the cap and limits its slide movement. 'I'he rear projection |08 moreover performs the additional function of facilitatingloosening of the cap and initiating its movement in a rearward direction upon the application of' the thumb or iinger against the'underside of the ilange |0b at the rear, or

of a bottle cap removing tool in the same manner, as will be described below.

It will be seen that the sliding engagement of the cap piece as hereinbefore described, will compress the elastic joint planchet upon the true top edge of the bottle neck I2 and thus seal the same hermetically holding the gaseous liquid contents therein until the bottle is breached by the removalof the cap piece.

Another method of fastening the cup upon the bead |2a may be employed such as placing the cap on the edge of the bottle neck centrally relative to the axial line of the bottle, and pressing it downwardly to spread the resilient lip extensions |0|, |02,` |03 and their upward projections |06, |0'|, and |08 over the lbead to resiliently grasp the underside of the bead.

The cap may be removed with or without the aid of a cap removing tool. -In either case, the lower rear edge of the flange |0b is pried or forced upward, thereby causing simultaneous rearward movement of the cap for a short distance owing. 'to the sliding of the rear The description is intended to be illustrative rather than limitative.

I claim:

1. A bottle cap for a bottle having an annular bead at its mouth, comprising a member adapted to cover the mouth oi the bottle having a depending peripheral flange extending from the peripheral edge thereof. said flange having a cutout at the front of the cap of a size which is adapted to receive said bead, the lower peripheral edge of said iiange lying in a plane parallel with the peripheral edge of said member, said ilange having an inwardly projecting lip along the lower edge thereof, said lip having circumferentially spaced upwardly extending rounded cam-like projections on the upper surface thereof on the sides of said fiange and having an additional upwardly projecting rounded cam-like projection at the rear of said ange, said projections being adapted to engage the underside of said bead to clamp said cap on said mouth.

2. A bottle cap for a bottle having an annular bead at its mouth, comprising a member adapted to cover the mouth of the bottle having a. depending peripheral flange extending from the peripheral edge thereof, said flange having a cutout at the front of the cap of `a size which is adapted to receive said bead, the lower peripheral edge of said flange lying in a plane parallel with the peripheral edge of said member, said flange having an inwardly projecting lip along the lower edge thereof, said lip having circumferentially spaced upwardly extending rounded cam-like 15 projections on the upper surface thereof on the sides of said ange, said projections being adapted to engage the underside of said bead to clasp said cap on said mouth. v

VINCENT GUARNASCHELH. 

